Global Patent Index - EP 2278311 A2

EP 2278311 A2 20110126 - Destructible surfactants and uses thereof

Title (en)

Destructible surfactants and uses thereof

Title (de)

Zerstörbare Tenside und Verwendungen dafür

Title (fr)

Agents tensioactifs destructibles et leurs utilisations

Publication

EP 2278311 A2 20110126 (EN)

Application

EP 10182455 A 20000512

Priority

  • EP 00930651 A 20000512
  • US 13411399 P 19990514

Abstract (en)

Destructible surfactants and methods of using same are provided. The application includes anionic surfactants having a dioxolane or dioxane functional group as represented by the formula in which p is 0, 1 or 2; R is alkyl; R 1 and R 2 are each, independently, hydrogen or methyl; R 3 is selected from -OSO 3 - , -R 4 OSO 3 - , -R 4 OR 5 SO 3 - , and -OR 5 SO 3 - , wherein R 4 and R 5 are each, independently, lower alkyl; with the provisos that when p is 0 and R 1 is methyl, R 3 is not -CH 2 O(CH 2 ) 4 SO 3 or when p is 1 and R 1 is hydrogen and R 2 is methyl, R 3 is not -CH 2 OSO 3 . This enables the surfactant to be broken down under acidic conditions. The application also includes methods of making anionic surfactants and methods of using anionic surfactants in a variety of applications.

IPC 8 full level

G01N 27/26 (2006.01); C09K 23/00 (2022.01); G01N 27/447 (2006.01); G01N 33/68 (2006.01); G01N 30/02 (2006.01)

CPC (source: EP US)

C09K 23/00 (2022.01 - EP US); C09K 23/32 (2022.01 - EP US); G01N 27/44747 (2013.01 - EP US); G01N 30/04 (2013.01 - EP US); B01D 15/203 (2013.01 - EP US); G01N 30/02 (2013.01 - EP US)

C-Set (source: EP US)

G01N 30/02 + B01D 15/366

Citation (applicant)

  • LAEMMLI, NATURE, vol. 227, 1970, pages 680 - 685
  • P. JAMES, EUR. J. BIOCHEM., vol. 246, 1997, pages 336 - 343
  • J.E.SCHIVELY: "Methods ofprotein microcharacterization", 1986, HUMANA PRESS, pages: 41
  • W. H. KONINGSBERG, ENZYMOL, vol. 91, 1983, pages 254
  • P. DAVIDSSON; A. WESTMAN; M. PUCHADES. C. L. NILSSON; K. BLENNOW, ANAL. CHEM., vol. 71, 1999, pages 642 - 647
  • H. KAWASAKI; K. SUZUKI, ANAL, BIOCHEM., vol. 186, 1990, pages 264
  • FEMANDEZ-PATRON ET AL., ELECTROPHORESIS, vol. 19, 1998, pages 2398 - 2406

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 0070334 A1 20001123; AU 4843500 A 20001205; EP 1181537 A1 20020227; EP 1181537 A4 20071219; EP 1181537 B1 20130710; EP 2278311 A2 20110126; EP 2278311 A3 20110727; US 2008027234 A1 20080131; US 7229539 B1 20070612

DOCDB simple family (application)

US 0013028 W 20000512; AU 4843500 A 20000512; EP 00930651 A 20000512; EP 10182455 A 20000512; US 16900200 A 20000512; US 81169607 A 20070611